Gas mixer and vaporizer



NOV. 26, 1935. w HUTCHISQN I 2,022,510

GAS MIXER AND VAPORIZER Filed Nov. 22, 1930 1 Fig.2.

26 8'! WILLIAM BHUTCHISON fiiig attorney Patented Nov. 26, 1935 UNITEDSTATES PATENT OFFICE Application November 22, 1930, Serial No. 497,417In Great Britain November 22, 1929 1 Claim.

This invention comprises improvements in gas mixers and Vaporizers forinternal combustion engines and has for its object to provide for themore efiicient mixing of the charge and for fa- 5 cilitating the use ofheavy hydrocarbon fuels.

Referring to the drawing:--

Figure 1 is a perspective view of a gas mixer and vaporizer according tothis invention.

Figure 2 is a perspective View partly in section 10 of the gas mixer andvaporizer shown in Figure 1,

whilst, Figure 3 is a diagrammatic perspective view of the gas mixeraccording to this invention shown inserted in a conduit between thecarburetor and intake manifold.

In carrying the present invention into practice as shown upon theaccompanying drawing, a flange 3 is provided, said flange being adaptedto be disposed between the carburettor 30 and the inlet manifold 3| asshown in Figure 3. flange 3 has the central opening 4 thereof formedwith an annular recess 5, said recess being closed with the ring 6 inwhich is formed a series of holes 23 for the purpose hereinafterexplained.

Mounted in the flange 3 is a radially disposed casing 8, whilstconnected thereto and coaxial with the flange 3 is the tubular casing 9.

Disposed in the tubular casing 9 is the heating element I9 which ismounted upon the rod II and insulated therefrom, or if desired theheating element I0 can be disposed within the tubular casing 8. Theouter end of the rod II is chamfered and the chamfered end is adapted tobe located in the closure member I2 which is screwed into the tubularcasing 9 and thereby centrally disposes the outer end of the rod II. Theinner end of the rod I I is provided with a screwed hole into which isscrewed the rod I3 which is disposed in the tubular casing 9 andinsulated therefrom by means of the insulation I4. The exterior end ofthe rod I3 has mounted thereon the insulator I5, whilst the end of saidrod is screw threaded to receive the terminal nut I6. The rods I I andI3 act as conductors to the resistance of the heating element Ill.

The tubular casing 9 has radially disposed around its periphery a seriesof projections I1 which become heated when the heating element I0 is inoperation and form a series of hot points against which the mixtureimpinges, thereby raising the temperature of the mixture and improvingvaporization, said projections I! also facilitating the mixing of thegases or mixture as it passes to the cylinders.

Disposed at right angles to the axis of the flange 3 is a tubularextension I8 in which is pro- The vided the passage 28 whichcommunicates with the annular recess 5. Mounted in the tubular extensionI8 is a valve I9 which has formed thereon a seating 20, the valve I9being adapted to seat on the seating 2| formed in the tubular extensionI 8. The valve I9 has provided around its periphery an annular recess 22which has formed therein a series of holes I which communicate with thehollow centre of the valve I9; mounted on the top of the valve I9 is acompression spring 24 which normally retains the valve I9 off itsseating 2| Provided in the tubular extension I8 is an aperture 25 whichis adapted to register with the annular recess 22 thereby permitting airto be drawn through the extension I8 into the annular recess 5 of theflange 3 and thence through the series of holes 23 when it impingesagainst the tubular casings 8 and. 9 which causes the air to be moreefficiently mixed with 20 the incoming fuel.

The tubular extension I8 is closed at its outer end by the screwed plug26 which is adapted to regulate the tension on the spring 24 and to belocked in position by means of the lock nut 21.

The before described valve permits of an extra air supply which isautomatically controlled by the speed of the engine, not shown.

The gas mixer and vaporizer according to this invention permits of heavyliquid fuels being used with existing internal combustion engines,furthermore it has been found possible to use a comparatively largepercentage of paraflin or other heavy fuel oils mixed with the gasolinethereby reducing the fuel cost without detracting from the efliciency ofthe running of the engine.

I claim:

A fuel gas and air mixer and liquid fuel vaporizer, comprising incombination a flange having an annular recess around an opening in saidflange, a ring which is adapted to close said recess and provided with aseries of outlet holes therein, a tubular extension connected with saidflange having an air passage therein which communicates with the annularrecess around the flange opening, a spring controlled valve mounted insaid tubular extension which is adapted to control the air flow, amember mounted on said flange which extends into the flange opening, anextension to said member which is coaxial to the flange opening, anelectrical heating element disposed in said coaxial member, andprojections arranged around the periphery of theccoaxial member whichare adapted to provide hot points for heating the fuel and air mixture.

W. E. HUTCHISON.

